What type of innovation involves changes that significantly alter how consumers interact with the product?

The type of innovation that involves changes significantly altering how consumers interact with a product is radical innovation. This form of innovation introduces entirely new technology or concepts that transform user experiences and behaviors. It does not just modify existing products or technologies; rather, it creates a substantial shift in the market by introducing features or functionalities that redefine how consumers engage with the product.

In the context of marketing, radical innovation often leads to the establishment of new markets or the complete transformation of existing ones, fundamentally changing the competitive landscape. Products resulting from radical innovation might make previously existing products obsolete or significantly shift consumer expectations.

Dynamically continuous innovation, in contrast, involves improvements or enhancements that still allow consumers to maintain a familiar interaction with the product. Continuous innovation represents minor adjustments that cumulatively enhance user experience without fundamentally altering the product interaction principles. Disruptive innovation often refers to technological advancements that, while transformative, tend to initially serve a niche market and only later appeal to a broader audience.

Thus, it is the breadth and depth of change associated with radical innovation that makes it the correct answer in this context, highlighting its unique impact on consumer interaction.